Watch List notes:

Tacitus, 275 – 276. Aureus, Siscia 275-276, AV 4.66 g. IMP C M CL TACITVS AVG Laureate, draped and cuirassed bust r. Rev. ROMAE AET – ERNAE Roma seated l. holding globe and spear; at side, shield. C 112. RIC 116 corr. RIC temp. 3593 (this coin listed). CBN 1717. Calicó 4111.
Rare and in exceptional condition for the issue. Virtually as struck and almost Fdc

Ex Lanz sale 141, 2008, 754.